( 414 ) 



rounded. The snbmarginal line of hindwing better defiaed than in Mexican 

 individuals. 



Iliib. Western Ecuador : Balzaparnba (Haensch), Chiuibo and Paramba 

 (Rosenberg), S. Javier at the Rio Gachabi (Fleniming i Miketta), Quevedo 

 (Buchwald), S. Domingo de los i'olorados (Goodfellow). 



4. Rothschildia orizaba cauca snbsp. nov. 



S. Dark chocolate-tawny. Transparent spots smaller tliau in Central 

 American specimens of this species, that of forewing proximally almost straight, 

 standing widely separate from the autemedian band and distally not quite reaching 

 to the white discal line; the latter not qnite so strongly dentate as in R. o. Orizaba, 

 at least not so deeply incurved between the two median veins, being also thinner 

 and a little farther from the margin than in that subspecies ; the pink discal 

 scaling wider, but not so prominent as in R. o. orizaba ; the halfmoon situated 

 distally to black subapical spot rilled in with reddish, and the white line at the 



proximal side of that spot nearly straight. The transparent spot of the hindwing 



triangular, the anterior and posterior sides being of the same length, the proximal 

 side rounded and much shorter; the pinkish scaling outside the discal line not 

 prominent ; the upper submarginal spots very large, reddish. 



Underside: the costal margin of forewing of the same dee]) chestnut colour as 

 the central area of the wiug, there being hardly a trace of grey scaling aloug the 

 costal edge ; the pinkish grey area of both wings much extended, the subapical 

 portion of the area on the forewiug not being distinctly separated from the discal 

 portion; the snbmarginal spots of forewing ill-defined on their proximal side, the 

 upper ones of the hindwing large, those in the first four cellules more or less 

 merged together in pairs ; the submarginal line black also at apex of wiDg. 



Hab. Cauca valley, Colombia. 



1 $. 



5. Rothschildia orizaba bogotana subsp. nov. 



cT. Brighter tawny than the preceding subspecies. The abdomen beneath 

 almost entirely white like the claspers. The transparent spot of the forewing 

 triangular, with nearly straight sides, the proximal and distal sides being of the 

 same length, while the costal side is only half the length, the spot just touching 

 the black discal line, as on hindwing, and standing widely separate from the 

 antemedian baud; pink scaling of the disc more concentrated and less extended 



in width than in R. o. cauca. On the hindwing the transparent spot rounded 



off distally, the straight proximal side being longer than the costal side ; sub- 

 marginal spots all of nearly the same size, the upper ones reddish. 



On underside the discal scaling more pink than in I!, o. cauca, the 

 submarginal spots of the forewiug all well defined, and the hindmarginal area 

 paler than in cauca. 



Hab. Santa Fe de Bogota. 



1 6. 



6. Rothschildia orizaba meridana subsp. nov. 

 6 ?. Similar to bogotana. The underside of the abdomen much less extended 

 white. The proximal side of the transparent spot of the forewing only one-third 

 longer than the costal side, sometimes not longer than that side, being often 



